maybe the final words, matt. >> as you say, he did embrace twitter. although maybe more a toe in the water than a full-fledged endorsement of it. i that is his 39th or 40th tweet ever. we don't know if he'll sweet again before 8:00 this evening. guesting back to castel gandolfo for a second, savannah, he did have something to say about that place. the plaque outside the hall there, on the 2007 endorsement, he said, here i find everything, mountains, lake, and i can even see the sea. and of course, good people. the pope's helicopter now lifting off for the vatican for that short trip, what will his home for the next two months. and i would imagine that clears the walls, that comes into view of people of several hundred, perhaps a thousand have gathered in st. peter's square, watching this on a large monitor, it will be very emotional to watch this helicopter fly by.